Floating brake

Abstract

The utility model belongs to the technical field of brake manufacturing, and relates to a floating brake. Comprising a floating base, a main brake body and an auxiliary brake body, an oil cylinder is arranged on the main brake body, a piston and a piston rod are arranged in the oil cylinder, a disc spring is arranged on the piston rod, friction plates are correspondingly arranged on the main brake body and the auxiliary brake body, a sliding shaft is arranged in the middle of the floating base, and the main brake body and the auxiliary brake body are connected into a whole through bolts. The floating base is arranged on the main braking machine body and slidably connected to a sliding shaft of the floating base, supporting seats are symmetrically arranged on the two sides of the floating base, reset bolt holes are formed in the supporting seats, spring holes are formed in the two sides of the main braking machine body, reset springs are arranged in the spring holes, reset bolts penetrate through the spring holes, and the reset springs are connected to the reset bolts in a sleeved mode. The reset bolt is slidably connected with the main brake body, the lower end of the reset bolt is in threaded connection with the reset bolt hole, and a friction limit switch is embedded in the friction plate. The device is simple and light in structure, high in safety and good in switching-off effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake manufacturing, and specifically relates to a floating brake. Background Art

[0002] The design of a brake is to convert the braking force from the brake into a braking torque on the brake disc. Its purpose is either to stop the rotation of the brake disc or to prevent its rotation when parking. A single-spring floating brake is a spring-actuated, hydraulically-released fail-safe disc brake.

[0003] For example, the single-spring floating braking device disclosed in Chinese patent document CN 201517573U includes a floating base, a main brake body and a sub-brake body. An oil cylinder is provided on the main brake body. Friction plates are provided on both the main brake body and the sub-brake body. The outer end face of the piston is closely attached to the friction plate bottom surface of the main brake body. A sliding shaft is provided on the floating base. The main brake body and the sub-brake body are connected into one body by bolts and are installed on the sliding shaft of the base. A spring lower seat is provided on the sliding shaft. The spring upper seat is fixed to the top end of the sliding shaft by a spring compression screw. A return spring is arranged between the spring upper and lower seats on the sliding shaft. The floating installation design is adopted, which is fast and convenient for installation and debugging; the linkage reset design has the advantage of equal opening gaps.

[0004] However, the existing single-spring floating brake has a bulky structure. Moreover, during use, when the brake is suddenly used too frequently and not checked in time or not thoroughly troubleshot, the friction material of the friction plate may be completely exhausted, resulting in an accident where the brake disc is damaged by rubbing against the steel plate. In addition, the friction plate backing plate on the main brake body is prone to deformation under force, affecting the opening effect. Therefore, it is urgently needed to be improved. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above technical problems and propose a floating brake.

[0006] Its technical solution is as follows: A floating brake includes a floating base, a main brake body, and a secondary brake body. An oil cylinder is provided on the main brake body. A piston and a piston rod are installed in the oil cylinder. A disc spring is installed on the piston rod. A dust ring and a sealing ring are installed between the oil cylinder and the piston. Friction plates are correspondingly provided on both the main brake body and the secondary brake body. A sliding shaft is provided in the middle of the floating base. The main brake body and the secondary brake body are connected into one body by bolts and are slidably connected to the sliding shaft of the floating base. Support seats are symmetrically provided on both sides of the floating base. A reset bolt hole is provided on the support seat. Spring holes are provided on both sides of the main brake body. A reset spring is provided in the spring hole. A reset bolt passes through the spring hole. The reset spring is sleeved on the reset bolt. One end of the reset spring is fixedly connected to the bottom wall of the spring hole, and the other end is fixedly connected to the upper end of the reset bolt. The reset bolt is slidably connected to the main brake body, and the lower end of the reset bolt is threadedly connected to the reset bolt hole. A friction limit switch is embedded in the friction plate.

[0007] Preferably, the friction limit switch adopts a micro switch.

[0008] Preferably, the bottom of the oil cylinder is slidably and sealingly connected with a steel back. The top end of the steel back is fixedly connected to the piston rod. An installation plate is fixed to the bottom of the steel back. The installation plate and the friction plate are connected by fixing bolts. By adding the steel back, the strength of the installation plate can be improved, thereby avoiding the deformation of the friction plate on the main brake body due to force, which helps to ensure the opening effect of the device.

[0009] Preferably, lower spring seats are symmetrically provided on both sides of the steel back. Upper spring seats are symmetrically provided on both sides of the oil cylinder. The upper spring seats and the lower spring seats are arranged in one-to-one correspondence, and a tension spring is connected between the corresponding upper spring seats and lower spring seats. By setting the tension spring, it is further used to ensure the opening effect of the device.

[0010] Preferably, lifting lugs are symmetrically provided on both sides of the main brake body, which facilitates the hoisting and maintenance of the device.

[0011] The present utility model further includes other components that can make a floating brake work properly, which are all conventional means in the art. In addition, devices or components not defined in the present utility model, such as oil cylinders, pistons, piston rods, friction plates, sliding shafts, and micro switches, etc., all adopt the existing technologies in the art. Those skilled in the art can select the specifications and models of the corresponding devices or components according to actual needs.

[0012] The working principle of the present utility model is that in this application, a floating installation design is achieved through the sliding shaft in the middle of the floating base, the reset bolts on the two side support seats, and the reset springs in the spring holes on both sides of the main brake body. The structure is lighter. By setting a friction limit switch on the friction plate, a warning can be issued in a timely manner when the friction plate wears to the thickness that must be replaced, which helps to improve the safety of the device.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The invention has a simple and light structure, high safety, and good braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the present utility model in the embodiment.

[0015] Figure 2 It is Figure 1 the sectional structural schematic diagram in the A-A direction in

[0016] Figure 3 It is Figure 1 the partial sectional structural schematic diagram in the B-B direction in

[0017] Figure 4 It is Figure 1 the top view structural schematic diagram of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solution of the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0019] Embodiment:

[0020] As Figures 1 to 4 shown, this embodiment provides a floating brake, including a floating base 1, a main brake body 2, and a secondary brake body 3. An oil cylinder 4 is provided on the main brake body. A piston 5 and a piston rod 6 are installed in the oil cylinder. A disc spring 7 is installed on the piston rod. A dust-proof ring and a sealing ring are installed between the oil cylinder and the piston. Friction plates 8 are correspondingly provided on both the main brake body and the secondary brake body. A sliding shaft 9 is provided in the middle of the floating base. The main brake body and the secondary brake body are connected into one body by bolts and are slidably connected to the sliding shaft of the floating base. Support seats 10 are symmetrically provided on both sides of the floating base. A reset bolt hole is provided on the support seat. Spring holes 11 are provided on both sides of the main brake body. A reset spring 12 is provided in the spring hole. A reset bolt 13 penetrates through the spring hole. The reset spring is sleeved on the reset bolt. One end of the reset spring is fixedly connected to the bottom wall of the spring hole, and the other end is fixedly connected to the upper end of the reset bolt. The reset bolt is slidably connected to the main brake body, and the lower end of the reset bolt is threadedly connected to the reset bolt hole. A friction limit switch 14 is embedded in the friction plate. Specifically, the friction limit switch adopts a micro switch.

[0021] In this embodiment, the bottom of the oil cylinder is slidably and sealingly connected with a steel back 15. The top of the steel back is fixedly connected with the piston rod, and an installation plate 16 is fixed at the bottom of the steel back. The installation plate and the friction plate are connected by fixing bolts. By adding the steel back, the strength of the installation plate can be improved, thereby avoiding the deformation of the friction plate on the main brake body due to force, which helps to ensure the opening effect of the device.

[0022] Specifically, lower spring seats are symmetrically arranged on both sides of the steel back, and upper spring seats are symmetrically arranged on both sides of the oil cylinder. The upper spring seats and the lower spring seats are arranged in one-to-one correspondence, and a tension spring 17 is connected between the corresponding upper spring seat and the lower spring seat. By setting the tension spring, it is further used to ensure the opening effect of the device.

[0023] In addition, lifting lugs 18 are symmetrically arranged on both sides of the main brake body, which facilitates the lifting and maintenance of the device.

[0024] The working principle of the present utility model is that this application realizes a floating installation design through the sliding shaft in the middle of the floating base, the reset bolts on the two side support seats, and the reset springs in the spring holes on both sides of the main brake body. The structure is lighter. By setting a friction limit switch on the friction plate, a warning can be issued in time when the friction plate wears to the thickness that must be replaced, which helps to improve the safety of the device.

[0025] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A floating brake, comprising a floating base, a main brake body and an auxiliary brake body, wherein an oil cylinder is arranged on the main brake body, a piston and a piston rod are arranged in the oil cylinder, a disc spring is arranged on the piston rod, a dust ring and a sealing ring are arranged between the oil cylinder and the piston, friction plates are arranged on the main brake body and the auxiliary brake body respectively, a sliding shaft is arranged on the floating base, the main brake body and the auxiliary brake body are connected as a whole by bolts, and are slidably connected to the sliding shaft of the floating base, characterized in that: A sliding shaft is provided in the middle of the floating base, and support seats are symmetrically provided on both sides. A reset bolt hole is provided on the support seat, and spring holes are provided on both sides of the main brake body. A reset spring is provided in the spring hole, and a reset bolt passes through the spring hole. The reset spring is sleeved on the reset bolt, and one end of the reset spring is fixedly connected to the bottom wall of the spring hole, and the other end is fixedly connected to the upper end of the reset bolt. The reset bolt is slidably connected to the main brake body, and the lower end of the reset bolt is threadedly connected to the reset bolt hole. A friction limit switch is embedded on the friction plate.

2. A floating brake according to claim 1, characterized in that: The friction limit switch adopts a micro switch.

3. A floating brake according to claim 1, characterized in that: The bottom of the oil cylinder is slidably and sealingly connected with a steel back, the top of the steel back is fixedly connected to the piston rod, and the bottom of the steel back is fixed with a mounting plate, and the mounting plate is connected to the friction plate through fixing bolts.

4. A floating brake according to claim 3, characterized in that: Lower spring seats are symmetrically arranged on both sides of the steel back, and upper spring seats are symmetrically arranged on both sides of the oil cylinder. The upper spring seats are arranged in one-to-one correspondence with the lower spring seats, and tension springs are connected between the corresponding upper spring seats and lower spring seats.

5. A floating brake according to any one of claims 1 to 4, characterized in that: Lifting ears are symmetrically arranged on both sides of the main brake body.

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